package com.etoak;

public class student {
    public static void main(String[] args) {

    }
    public void add(){
        System.out.println("添加功能");
    }
    public void queryAll(){
        System.out.println("查询功能");
    }
    public void chat(){
        System.out.println("聊天功能");
    }
    public String getById(int id){
        System.out.println(id);
        return null;
    }

}
